Bolt and nut lock



sept'. u, 11923. www@ D. E. AHLqERs Bouri AND Nur LocK 'Filed June` 24. 1922 rennen seen n, iena narra-nera arcani DAWN E.' AHLEBS, 0F CARLISLE, PENNSYLVANIA,

EDLE. AND NUT LOCK.

J Applicationled time 24, 1922.' serial No. 570,689.

To all whomct may concern:

)Be it known that' l, Devin E. Annees, a citizen of the United States, residing at Carlisle, in the county of Cumberland and State of Pennsylvania, have invented certain new and useful Improvements in Bolt and Nut Locks; and l do hereby declare the following to be a full, clear, and exact description or the invention, suchas Wil/l'enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and -to the I `letters andk figures' ol? reference .marked type of lock comp thereon, which forma part oi this specica.

'lhis invention relates to bolt and nut locks and' has for an object to provide an improved rising a threaded bolt and threaded sleeve disposed upon the bolt, with improved means iorlocking'the sleeve and bolt together at opposite ends of' the sleeve.

A further object oi the invention is to rovide in combination `with a threaded olt having la head .thereon and a sleeve internall Lvfee together et the-lock separated;

threaded for application to the bolt, of conical connecting means between the ends oi the sleeve and the bolt.

A further object of, the invention is to providein combination with a threaded'bolt rtion intermediate the thread and the hea of a thread? ed sleevelhaving its end tapered complementary to the conical portion oli the bolt and its 'opposite end tapered, with a nut' having a conical extremity adapted to be positioned upon the bolt randv to occupy `the last-men- Y tioned conical. inset inthe sleeve.

With these and other obje-cts in view the inventlon comprises certain novel parts,

' elements, units, combinations, constructions,

(and functions, as disclosed in the drawing,

with mechanical equivalents thereof, as vw/ill be hereinafter more fully described and claimed. y

ln the drawings: Figure 1j is a view in longitudinal substan- /tiall diametrical section,- oil the bolt and nut eck assembled; J

Figure 2 is a transverse-[sectional view through the sleeve and holt, as indicated by Figure is a perspective view of vthe units i Figure d is a sectional view substantiall diametrical of the lock sho f, a type mod?,-A

iied as compared with .the typeoshown at` 'Figure l. f

Like characters of reference indicate corresponding parts throughoutthe several views. v

ln the preferred type of nut lock as shown at Figures 1, 2 and 3, a threaded bolt 10 is employed of substantiallythe usual and ordina type, having a head 11 with a tapered or su stantially conical portion 12 intermediate the head and the threaded portion ci the bolt vand a reversely threaded section 10 Y at the end.

A sleeve 13 is provided internall screwthreaded to correspond to the threa s ol the bolt. and having at one end an inset tapered \.bore,'indicated at 1d, the taper of which corresponds to the conicality oi the cone 1 2.

y At the end opposite the said inset taper the sleeve is provided with a head, 15, the said head 15 and head 11 reierably, though not necessarily, correspon ing to each other and being similar and shown in the drawings as being hexagonal, in no way limited "as to sizeor similarity as to the inultiangular formation. v

ln the end of the sleeve provided with the head 15am inset taper 16 is formed and a nut i7 is provided having a conical end 18 although the invention is to the uniformity, either complementary to the taper- 16 of the head l5 and a thread .complementary to the f threaded portion 10.

ln assembling the device in operative position the sleeve 13 is first inserted through the parts to be connected and through an opening proportioned to receive said sleeve until the head with one side oi the body.

The bolt is now inserted by inserting the threaded portion 10 into the sleeve and is screwed home in any usual and ordinary manner, as by the application of a wrench or the like to the head 11.' As occasion may rel quire either .the head 11 or the head 15 may Drecei e the wrench or a similar article, as it is lobvious that either therotation of the bolt or the vsleeve will .accomplish the same purpose of tightening the tvvomeinbersl relative to each other. l

required pressure upon the bod between the heads 11 and 15 and to seat the co e 12 in the taper 14, the streseis maintained .by applying the` nut 17 to the reld comes into engagement MID Alltld The devicebeing tightened to exert the interposed 2. A nut lock comprisingy versely threaded end 10 of the bolt extending beyond the head 15 until the conicalportion 18 of said nut isy firmly Iseated in the taper 16 of the `head 15. By reason of this tapered engagement great binding Vlforce is exerted Which Will prevent retro-action of the nut 17 under ordinary conditions of use, nlpluding excessive jar, vibration and the As shown at Figure 4 the device is modified by forming the end of the sleeve 13 With a cone or conical portion 19 and the head`11 is provided With an inset conical taper 20 complementary to the conical vendof the sleev e. yIn either case the connection between the head of the bolt and the end of the sleeve is the connection of a cone in a tapered socket; whereby the tendency to return is largely obviated. l

- `What l claim is:

1. A nut lock comprising a threaded bolt having a tapered portion connecting the threaded bolt and head, a sleeve having a taper formed at its end complementary to the taper adjacent the head and having an inset tapered socket at its oppositeend, and a nut positioned upon the end of the bolt having a conical portion positioned in Said last-mentioned tapered socket. i

a bolt having a internally screw-threaded to occupy a threaded. shank and a head, a tapered part l forming connection between the threaded part and the head, anA internally screwthreaded sleeve proportioned for position.

upon the threaded portion ofthe bolt and shorter than said threaded portion and havf ing one extremity formed complementary tothe taper of the bolt, said sleeve being also provided with a tapered socket in its opposite end and a nut positioned upon the bolt, said nut having a taperedportion inserted into the tapered socket of the sleeve.

3. A nut lock comprising a bolt including a threaded shank, a head and a conical portion interposed between the head and the threaded portion, an internally screwthreaded sleeve having its opposite ends provided with conically tapered sockets, one of 4said sockets being proportioned comple mentary to the conical portion` of the bolt, anda nut having a conical extremity proportioned complementary to the tapered. socket in the opposite end of said sleeve and n P0' sition upon the extremity of the shank of the bolt and Within said tapered socket.4

In testimony whereof l hereunto aiiix my signature.

DAVID E, AHLERS. 

